presyncopal dizziness

presyncopal dizziness

Vertigo preceding syncope, accompanied by a sense of impending blackout, and tunnel vision, all due to ↓ blood flow to the brain, typically worse when standing; PD may occur in healthy persons who rise too quickly from a chair, often after a meal, accompanied by brief disorientation. See Orthostatic hypotension.
References in periodicals archive ?
Presyncopal dizziness, often associated with a feeling of light-headness and impending collapse, can be caused by hyperventilation due to chronic anxiety (Baloh, 1996a).